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/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2007 by Jens Arnold
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
****************************************************************************/
#include "config.h"
#include <stdbool.h>
#include "adc.h"
#include "cpu.h"
#include "hwcompat.h"
#include "system.h"
#include "usb.h"
int usb_detect(void)
{
return (adc_read(ADC_USB_POWER) > 500) ? USB_INSERTED : USB_EXTRACTED;
}
void usb_enable(bool on)
{
if(HW_MASK & USB_ACTIVE_HIGH)
on = !on;
if(on)
and_b(~0x04, &PADRH); /* enable USB */
else
or_b(0x04, &PADRH);
}
void usb_init_device(void)
{
usb_enable(false);
or_b(0x04, &PAIORH);
}
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